Core Insights - The "773" blockage removal and sand prevention technology developed by Shengli Oilfield's Luming Company has shown significant results in the application at Qu 9-斜259 and Qu 9-斜257 wells, providing replicable experience for similar oil reservoir development [1][2] - The technology addresses seven types of blockage issues, including drilling mud pollution risks and sand-carrying liquid damage, through systematic analysis and collaborative efforts [1] - The "773" technology employs a composite of seven technical measures, creating a three-level governance system of "dredging, stabilization, and prevention" [1] Technical Details - The technology integrates three processes into one, significantly reducing the operation cycle by 20% and saving operational costs by 30,000 yuan per well, enhancing operational efficiency and economic viability [1] - After applying the technology at Qu 9-斜259, the well pressure decreased from 14.5 MPa to 9.3 MPa, and the daily water injection increased from zero to 20 cubic meters [1] - The daily oil production at Qu 9-斜242 increased from 3.5 tons to 4 tons, with a reduction in water cut by 4.4 percentage points and a rise in dynamic liquid level by 120 meters [1] Broader Implications - The "773" technology has achieved key breakthroughs in multiple rounds of well sand prevention and protection of water-sensitive and rapid-sensitive oil layers, forming a comprehensive technical system [2] - Preliminary estimates suggest that large-scale application of this technology could reduce the frequency of measures by over 20%, effectively lowering development costs while maximizing production capacity [2] - The complete technical specifications have been established, and the technology is being promoted across different development units in the Jibei Oil Production Management Area, demonstrating significant implications for enhancing oil recovery rates [2]

Core Viewpoint - The "773" blockage removal and sand prevention technology developed by Shengli Oilfield's Luming Company has shown significant results in oil well applications, providing replicable experiences for similar oil reservoir development [1][2] Group 1: Technology and Innovation - The "773" technology addresses seven types of blockage issues, including drilling mud pollution and sand-carrying liquid damage, through systematic analysis and collaborative efforts [1] - The technology employs a composite of seven technical measures, including segmented acidification and high-pressure water jet pulse negative pressure backflow, forming a three-level governance system of "dredging, stabilization, and prevention" [1] - A notable innovation is the D108 mm cone-shaped alloy tip, which integrates three previous operations into one, reducing the operation cycle by 20% and saving 30,000 yuan per well, significantly enhancing operational efficiency and cost-effectiveness [1] Group 2: Performance and Impact - After applying the technology in well Qu 9-斜259, the well pressure decreased from 14.5 MPa to 9.3 MPa, and the daily water injection increased from zero to 20 cubic meters [1] - The oil production from well Qu 9-斜242 increased from 3.5 tons to 4 tons, with a reduction in water cut by 4.4 percentage points and a rise in dynamic liquid level by 120 meters [1] - The technology has achieved key breakthroughs in multiple rounds of well sand prevention and protection of water-sensitive and fast-sensitive oil layers, forming a comprehensive technical system [2] Group 3: Future Developments - The technology is being promoted across different development units within the Jibei Oil Production Management Area, with significant implications for enhancing oil recovery rates in multi-round development [2] - The management area plans to continuously optimize process parameters to provide new technical support for efficient development [2]